Array.concat

concat — Based on the given input array, returns a new array with the parameters provided added to the end.

If the parameter is an array, each value will be added.

Description

Array.concat(mixed item, [mixed item, …])

Parameters

Return values

The new array with the values added.

Examples

Example #1 – concat example

Run
var array = [2, 4, 8, 16];
console.log(array);                 // [2, 4, 8, 16]
console.log(array.concat(32, 64));  // [2, 4, 8, 16, 32, 64]
console.log(array);                 // [2, 4, 8, 16]

Example #2 – concat example

Run
var array = [2, 4, 8];
var array2 = [16, 32];
var array3 = [64, 128];
console.log(array);                         // [2, 4, 8]
console.log(array.concat(array2, array3));  // [2, 4, 8, 16, 32, 64, 128]
console.log(array);                         // [2, 4, 8]

External references

• Mozilla: Array.concat method